About this item 1 Second Swap Magnetic attraction installs the filter in one second, reduces scratches and damage to the lens thread, 5.3mm ultra-slim CNC-non slip aluminum-magnesium alloy frame easily grips the filter, and no vignetting on a wide-angle and telephoto lens. 10 Stops Light Reduction The ND1000 filter provides 10 stops of light reduction, long-time exposure tool helps to achieve slow shutter speeds to be used on record objects movement such as waterfalls, presenting a silky smooth effect of flowing water. Imported AGC Gl Made by importing optical Japanese AGC gl for accurate light transmittance and with no effect on the image sharpness, no color cast. 28 Multi-Layer Coatings Both side of the gl with nanometer coatings, provides neutral color balance, reduces lens flare, avoids ghosting, is waterproof, and protects against scratches. Package Includes 1* magnetic ND1000 filter + 1* magnetic basic ring + 1* filter lens cap.